Improvement in boot and shoe sole-channeling machines



E. P. PIERCE.

Improvement in Boot and Shoe Sole Channeling-Machines.

N0. 129,588, Pa tented,JuIy16,1872.

leases UNITED STATES PATENT OEEIGE.

EDWARD P. PIEEcE, 0E BOSTON, MASSACHUSETTS.

Specification forming part of Letters Patent No. 129,588, dated July 16,1872.

To all whom it may concern:

Be it known that'I, EDWARD P. PIERCE, of Boston, in the county ofSuffolk and State of Massachusetts, have invented an Improvement inMachines for Edge-Channeling or Feather-Edging Boot and Shoe Soles 5 andI do hereby declare that the following, taken in connection withI thedrawing which accompanies and forms part of this specification, is adescription of my invention sufficient to enable those skilled in theart to practice it.

The invention relates particularly to that class of machines known asfeather-edging or channeling machines for chamfering the edges of soles,(to be used in the manufacture of turns,) in which the inner surface ofeach sole is generally made with a straight or nearly straight cut orgash at some distance from the edge of the sole, dippingldown towardsaid edge, and thereby forming a iiap and channel, at the bottom ofwhich the stitches enter, and with a channeled or chamfered edge. Inorder to insure a uniformity of distance of the stitches from the outersurface of the sole at the edge, the edge channel or chamfer must be cutto such depth as to leave an edge of uniform thickness, the bottom ofthe cut being not uniformly distant from the surface into which theknife enters, but uniformly distant fromA the opposite or outer smoothor wearing surface of the sole 5 and to insure such uniformity thecutter is attached to that part of the frame in which is journaled theshaft of the4 smooth feedfroll, that runs against said outer surface,but acts upon the opposite surface of the sole, the sole passing betweensaid wheel and the cuttingedge. In my invention the lower roll is thesmooth feed-roll, and the cutter-shank is attached to the stationarypart of the frame, in which the shaft of said roll is journaled, and toadjustably regulate the depth of cut I make the journal-box of said rollmovable vertically with relation to the cutter, with provision foradjusting its position to increase or decrease the Vdistance of the topof the roll from the cutter. It is in this construction or provision foradjustment that my invention consists, or

in the combination, with a cutter fixed to the frame, through whichextends the shaft, of the lower smooth feed-roll, the edge of saidcutter entering the surface opposite to that resting upon said roll, andwith the movable arm carrying the shaft of the upper serrated feedrollof a lower smooth feed-wheel, which is made adjustable vertically withrelation to the end of a shank, f, which, by a clamp-plate;

g, and screwbolt It, is fastened to the vertical cheek t', which extendsup from the frame or bed a; said cutter being stationary. The smoothfeed-roll l is fixed on the end of a rotary shaft, lc, and said shaft isjournaled in a bearing, l, which is made movable vertically, the innerface resting against the cheek c', and the bearing beingconfined,-except as to vertical movements, by screw-bolts m passingthrough slots in the bearing into the cheek i. Under the bearing, andworkin gin a nut-thread extending up into the bearing, is anadjustingscrew, w, which is provided with a wrenchhead, a, and byturning this screw the bearing l, shaft k, and wheel d are raised' orlowered to adjust the position of the wheel cl with4 relation to thecutter e.

The screw may have a right thread, o, and a left thread, p, one workinginto the bearing l and the other into an extension, q, of the bed a.

By means of this provision for movement of the wheel the depth of cut ofthe cutter may be very quickly and easily changed and regulated withoutdisturbance of any of the mechanism except the feed-wheel shaft and itsjournal-box.

I claim- In combination with the upper serrated or toothed wheel c, andwith the stationary cutter e xed to the bed or frame a, the lower smoothfeed-wheel d, having its shaft lc journaled in a vertically-adjustablebearing, l, substantially as shown and described.

EDWARD P. PIERCE.

Witnesses:

FRANCIS GoULD, M. W. FROTHINGHAM.

